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　Location：Home >> Auto-maintenance equipments >> Crank shaft grinding machine MQ8260A,MQ8260C

Crank shaft grinding machine MQ8260A,MQ8260C

Main features:

1. Three different work speeds areobtainable by making use of the belts in the headstock.

2. Cross chucks are used in theheadstock and tailstock.

3. Friction coupling is used inthe headstock transmission chain for its easy adjustment.

4. Table traverse is operatedeither by hand or by power.

5. Wheelhead rapid approach andwithdrawal is effected through hydraulic means.

6. The wheel spindle being of 80mmin diameter has good rigidity and strength.

7. Use is made of roller ways forwheelhead movement.

8. The bed ways and wheelhead arelubricated in an automatic cycle by means of the oil pump.

Specifications

Recommend accessories

Compared products

Operation Manual

　　Inquiry

Differences of MQ8260A and MQ8260C:

1. Table surface

Model A ---a flat table surface

ModelC----an oblique table surface (10 degree),So model C leads to an easy flow ofcoolant liquid and fast removal of steel chips.

2. Table structure

Model A---one-layer table, good rigidity,but more time when adjusting taper

Model C---double-layer table, lessrigidity, but less time when adjusting taper

3. Chuck structure

ModelA---dovetail type chucks on headstock and tailstock

Model C---flat type chucks on headstock andtailstock

Model	UMQ8260A	UMQ8260AX18	UMQ8260AX20	UMQ8260C	UMQ8260CX18
Max. Work swing diameter × Max work length	580×1600mm	580×1800mm	580×2000mm	600×1600mm	600×1800mm
Capacity
Max. Swing over table	580mm	580mm	580mm	600mm	600
Work diameter ground with steady rest	30~100mm	30~100mm	50~120mm	30~100mm	30~110
Throw of crankshaft	110mm	110mm	120mm	110mm	110
Max. work length ground
In 3-jaw chuck	1400mm	1600mm	1800mm	1400mm	1600
Between centers	1600mm	1800mm	2000mm	1600mm	1800
Max. work weight	120kg	120kg	150kg	120kg	120
Work head
Center height	300mm	300mm	300mm	300mm	300
Work speed	25,45,95r/min	25,45,95r/min	30,45,65,100r/min	25、45、95r/min	25、45、95r/min
Wheel head
Max. Cross movement	185mm	185mm	185mm	185mm(85mm Opted)	185mm(85mm Opted)
Wheel head rapid approach and withdrawal	100mm	100mm	100mm	100mm(200mm Opted)	200mm
Wheel feed per turnoff cross fed hand wheel	1mm	1mm	1mm	1mm	1mm
Per grad. of cross feed hand wheel	0.005mm	0.005mm	0.005mm	0.005mm	0.005mm
Grinding wheel
Wheel spindle speed (2steps)	740.890r/min	740.890r/min	740.890r/min	740.890r/min	740.890r/min
Wheel peripheral speed	25.6-35m/sec	25.6-35m/sec	25.6-35m/sec	25.6-35m/sec	25.6-35m/sec
Wheel size (O. D .× width ×Bore)	Φ900×32×Φ305mm	Φ900×32×Φ305mm	Φ900×32×Φ305mm	Φ900×32×Φ305mm	Φ900×32×Φ305mm
Table
Table traverse per turn of hand wheel coarse	5.88mm	5.88mm	5.88mm	5.88mm	5.88mm
Fine	1.68mm	1.68mm	1.68mm	1.68mm	1.68mm
Table Swivel (taper 18/100)	5°	5°	5°
Table Swivel per grad of scale (taper 1:50)	10′	10′	10′
Overall capacity of motors	9.82kw	9.82kw	11.12kw	9.82kw	9.82kw
Overall dimensions (L×W×H)	4166×2037×1584	4166×2037×1584	4900×2037×1584	4166×2037×1584	4166×2037×1584
Weight	Approx. 6000kg	Approx. 6000kg	Approx. 6000kg	Approx . 6000kg	Approx . 6000kg

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